The Great War messed up the political map of Europe. The detachments of the Czechoslovak legions join the German region "Nordböhmen" to the newly established Czecho-Slovak Republic. The sources of Bílinská kyselka are no longer in Austria-Hungary, but in the German region of Bohemia-Slovakia. The relationship of the Czechs to Bílinské kyselka is best represented by this newspaper advertisement.
A global trend and now ours too